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In Computer architecture, an instruction is a single operation of a processor. The width of an instruction depends on the architecture of the platform, but it is usually from 4 to 64 bits wide. The content of an instruction is determined by the platform's Instruction Set Architecture (ISA), but it usually contains an opcode, which determines the type of instruction, register sources and destination operands, and maybe an immediate field.
At a higher level, in computer science, an instruction could also be part of a computer program in a programming languageAn alternate rewrite has been has been. Please refer to it for large rewrites. A programming language or computer language is a standardized communication technique for expressing instructions to a computer. It is a set of syntactic and semantic rules use; see also ProcedureA procedure is a series of activities, tasks, steps, decisions, calculations and other processes, that when undertaken in the sequence laid down produces the described result, product or outcome. Following a procedure should produce repeatable results for.
In the context of FrenchThe French Republic or France ( French: Republique francaise or France is a country whose metropolitan territory is located in western Europe, and which is further made up of a collection of overseas islands and territories located in other continents. lawThis article is about law in society. For other possible meanings, see law (disambiguation). Law (a loanword from Danish-Norwegian lov , in politics and jurisprudence, is a set of rules of conduct which mandate or proscribe (or both) specified relationshi (or inquisitorial systems based on France's), the instruction is the pre-trial phase of a criminal investigation that is led by a judgeFor the hardcore band Judge see Judge (band A judge or justice is an appointed or elected official who presides over a court. The powers, functions, and training of judges varies widely from jurisdiction to jurisdiction. A judge can also be simply a quali. More generally, it refers to phases of judicial or administrative proceedings where a request is investigated, and information pertaining to it are collected, before a final decision is made.